vansize



(No Model.)

W. B. VANSIZE 8a 0. L. BUOKINGHAMQ PRINTING TELEGRAPH.

No. 304,052 Patented Aug. 26, 1884.

W, 2 VEN OR WITNESSES: W2 6a. QM 4 6% n. varcm mwmm m m. Waihngion. owc

llni'rn Sirn'rns XVILLIAM B. VANSIZE, OF BROOKLYN, AND CHAR-LES L. BUCKINGHAM, OF NEW YORK, ASSIGNORS TO THE WESTERN UNION TELEGRAPH COMPANY,

OF NEW YORK, N. Y.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 30 L052, datedAugust 26, 1884.

Application filed April 26, 1884. (No model.)

To CLZZ 2071,0712, it may concern:

Be it known that we, Nu. B. VANSIZE, of the city of Brooklyn, county of Kings, and State of New York, and CHARLES L. Beer;- INGRAM, oi the city, county, and State of New York, citizens of the United States, have invented a new and useful Improvement in Printing-Telegraphs, of which the following is a specification.

Our invention relates to that class ofpri utingtelegraph instruments having two type-wheels whose rotation is effected by a motorsuch as a cloclt-woirlzand an electromagnetic escapement controlled by short electrical impulses.

Hitherto, and prior to our invention, others had employed two type-wheels in printingtelegraph instruments, one having letters upon its periphery and the other figures. To enable the printing of letters to the exclusion of figures, and vice versa, complicated appa rat-us was necessarily employed-such, for instance, as that for the shifting of the two typewheels longitudinally upon their axis to bring one typewhecl over the strip of paper and to move the other from above the strip; also, a shield had been used which could be interposed between the paper strip and either type-wheel; again, the presspad had been laterally moved under one type-wheel or the other. In all of these cases it was necessary, as a condition precedent to the shifting of the printing from one wheel or the other, to first rotate the type-wheels to a predetermined or zero position.

The object of our im'ention is to enable the printing from either of two wheels, which may be rigidly fixed upon the same shaft, without using intricate devices for determining upon which type-wheel an impression shall be taken, and without consuming time incident to the operation of first rotating the type-wheels to a predetermined or zero position. To this end we use two main lines, which extend from the transmitting-station to one or more receiving-stations, the two main lines respectively embracing two multiple-arc coils wound in the same direction upon the core of the cscapemcnt elect-ro-magnet, and each of said main lines embraces the coils of an independent press-magnet. The motive power for tak- 5o ing an impression is furnished by any suitable motor having a constant tendency to start into action, but which is held in check by the projecting end of the bar, upon the opposite end of which the presspad is located. This 5 5 bar is pivoted at or near its center to a shaft of the pressmotor train, and so that the end bearing the press-pad may have a reciprocating movement at right angles to the longitudinal direction of the bar. The end of the bar 60 opposite the prcss pad is situated bet-ween the poles of the two press-magnets, subject to their equal but opposite action. hen impulses of electricity are simultaneously transmitted over both wires, the press-bar is held in a central 65 position, the press-pad being in a plane midway bctwcen the wheels and its opposite end in the path of a stop on a shaft of the pressinotor, holding said motor at rest.

To operate the instrument, impulses of elec 7o tricity are transmitted .over both wires, and when the desired character is positioned the circuit of the press-magnet corresponding to the wheel from which an impression is desired is broken, and the circuit is left closed 7 5 upon the other wire. The end of the pressbar opposite the presspad is thus drawn aside by the magnetism of the opposite press-magnet, and takes a position out of the path of the stop on the press-motor, which iinmedi- 8o ately starts into action, carrying the pad into contact with the desired character, To print from the other wheel, the operation is reversed as regards opening and closing the respective wires. Means for feeding the paper after an 8 5 impression, and for going to unison, which are well known, must be supplied.

The accompanying drawing illustrates our invention.

M is an electromagnet having two similar 0 and equal coils, located, respectively, in the main lines L L and operating the escapement C D. Letter and figure wheels F F are r0- tated step by step by the escapeinent and press magnets G H, located, respectively, in 5 main lines L L.

E is a clock-work having a constant tendency to start into action. The eainunovement eeand eonnectingbar d furnish a semi-rotatory reciprocating movement to arbor or bar 0, up on which is pivoted at Z) press-bar b, carrying a press-pad at one extremity. The opposite end of this bar I), when in a central position, is in the path of a stop, a, on an arbor, a, of press motor E. Bar 1), however, is under joint control of the press-magnets G H, and can only take a central position when said magnets are neutral or are equally magnetized.

If it be desired to take an impression from figure-wheel F, electrical impulses are simultaneously transmitted over both wires, the es capement is operated, and the desired character positioned, magnets G and H equally and oppositely affecting bar b. NVhen the character is in position, the circuit of L is broken and the circuit of L is closed. Magnet H being inoperative, magnet G draws bar 2) toward itself and out of the path of stop a on arbor a. Pressinotor E thereupon starts into action. A partial rotation is given to arbor 0, the presspad is struck against the desired character, and an impression is taken. To print from wheel F, line L is opened and L left closed after the character has been brought to position.

That we claim, and desire to secure by Let ters Patent, is-- 1. In a printing-telegraph. instrument, the combination of two main lines and an escapeinent electro-niagnet having two innltiplearc coils, forming parts, respectively, of the two main lines, as described.

2. In a printing-telcgraph instrument, the

combination of two main lines, an escapeinentmagnet'whose two coils form parts thereof, a printing-motor,and thetwoindepend'ent printing electro-magnets respectively placed in said main lines, for controlling said motor to print from one wheel or the other at pleasure, as described.

3. In atwo-wire printer, the combination of two eleetro-magnets whose coils respectively form parts of the two wires, a clock-train for actuating a printiing-bar, and a printingbar which, when in a central position, arrests said clock-train from rotation, but which, when attracted to one side or the other by either pressmagnet, releases said clock-work and permits an impression to be taken from one type-wheel or the other, according as the pressbar is attracted to one side or the other to release the clock-train.

4. Two type-wheels, in combination with a cloclrtrain for actuating a press-bar which, in a central position,arrests said clock-train, and which press-bar, when attracted either to one side or the other, releases said clock-train to effect an impression from one type-wheel or the other,and two electro-magnets respectively located in the two main lines, for attracting said press-bar to one side or the other.

M. 13. VANSIZE.

Witnesses:

D. E. RICHARDS, Gno. XVILLIs Prnncn.

CHARLES L. BUGKINGHAM. Vitnesses:

WILLARD BROWN, S. S. humans. 

